Spontaneous excitations in the visual cortex: stripes, spirals, rings, and collective bursts

  • Authors:
  • Corinna Fohlmeister;Wulfram Gerstner;Raphael Ritz;J. Leo van Hemmen

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Neural Computation
  • Year:
  • 1995

Quantified Score

Hi-index 0.00

Visualization

Abstract

As a simple model of the cortical sheet, we study a locallyconnected net of spiking neurons, Refractoriness, noise, axonaldelays, and the time course of excitatory and inhibitorypostsynaptic potentials are taken into account explicitly. Inaddition to a low-activity state and depending on the synapticefficacy, four different scenarios evolve spontaneously, viz.,stripes, spirals, rings, and collective bursts. Our results can berelated to experimental observations of drug-induced epilepsy andhallucinations.